Can I have a similar please. Sorry Mister that s the last one

Transcription

1 Can I have a similar please Sorry Mister that s the last one

2 Mega cities 1950 New York London Rhine-Ruhr Moscow Tokyo Shanghai Paris Buenos Aires

3 Mega cities 2015 Population worldwide in cities Tokyo Los Angeles Mexico City New York Sao Paulo % % % Istanbul Paris London Rhine-Ruhr Moscow Cairo Dhaka Mumbai Delhi Kolkata Karachi Beijing Tianjin Lahore Kabul Seoul Osaka Jakarta Shanghai Chicago Baghdad Ho Chi Minh City Tehran Jeddah Surat Yangon Bangkok Bandung Toronto Rio de Janeiro Guatemala City Bogotá Belo Horizonte Abidjan Lagos Luanda Lima Buenos Aires Source: U.N. Population Division Santiago

4 Extreme weather conditions today and tomorrow in Göteborg

5 The municipal executive board comission How prepared is Göteborg for extreme weather and climate change What kind of knowledge do we need?

6 Water so clear Adopted by city council KF september 2003 Deepened comprehensive plan from City planning office Cooperation with Real estate office Park-and Natur Environmental office Water and sewage office EU-project

7 If the sea rise with 0,5 m High water m Security 0,5 m Normal + 0 Funktions important för the society!

8 Updated scenario for sea level rise Latest IPCC (UN Intergovernmental panel on climate change) prediction on sea level rise is 0,9-1,6 meter by Earlier predictions (2007) were 0,2-0,6 meter. The observed changes in sea ice on the Arctic Ocean and in the mass of the Greenland Ice Sheet and Arctic ice caps and glaciers over the past ten years are dramatic and represent an obvious departure from the long-term patterns. 8

9 Topografic Map model Value 100 billions Protection 10 billions

10 COMPREHENSIVE PLAN Recommendation Risc for high water levels 2,8 m over normal water level If not special protection measures shall be investigated

11 Central Älvstaden, The central river city

12 Land slides

13 Extremt hög vattennivå Extremt hög vattennivå om medelvattennivå höjts Bräddavlopp. Vatten från recipient rinner bakvägen in i avloppssystem Bräddavlopp. Avloppssystemet fullt av vatten. Marköversvämning. Byggnader drabbas.

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17 Extremt hög vattennivå om medelvattennivå höjts Skyddsvall Bräddavlopp med pump. Avloppssystemet har en trycknivå som är acceptabel vid dimensionerande regn.

18 Temporary measures

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25 History and future Todays extreme water level Tomorrows extreme water level, Costs180 million Euro

26 Hydro model Gothenburg Planning Prognoses Test scenarios Information

27 Joint probabilities analyses Coupled frequency analyses of all 3 threats gives more realistic scenario Instead of combining worst case for all 3 threats Extreme sea level 10 year return period 100 year return period 200 year return period Flow in Göta älv river and tributaries Mean 100 year return period 200 year return period Surface water run-off 10 year return period 100 year return period 200 year return period 27

28 Municipal future work Hydro model Risk analysis Prestudy november Water level meter november 2011 Website water level meter Material depots for temporary protections Organizations för crisis risk Planning for protections work has started increased comission for temporary protections and evacuation TK, SBK, GBG vatten

29 Statens ansvar?! Water judgement Protection measures Planning and building act More money Directive calculation slope stability Time 50, år?? Who is responsible

30 An international centre for sustainable urban development in Göteborg!

31 Climate adapted city structure scenarios for Future Frihamnen

32 Retreat, defend, attack

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34 Impact assesment Economical Social Ecological Sociala konsekvenser Miljökonsekvenser Ekonomiska konsekvenser

35 Adapting cities to climate induced risks a coordinated approach Reserachers: University of Gothenburg, Swedish Geotechnical Institute, Linköping University and Chalmers University of Technology Intersectoral experts: City of Gotheburg, WSP and Hifab

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